Patch 8.2.1545
Problem:    ch_logfile() is unclear about closing when forking.
Solution:   Adjust the log messages.
Files:      src/channel.c, src/os_unix.c


*** ../vim-8.2.1544/src/channel.c       2020-08-23 14:28:24.111838486 +0200
--- src/channel.c       2020-08-29 22:39:31.658201090 +0200
***************
*** 144,149 ****
--- 144,150 ----
  
  // Log file opened with ch_logfile().
  static FILE *log_fd = NULL;
+ static char_u *log_name = NULL;
  #ifdef FEAT_RELTIME
  static proftime_T log_start;
  #endif
***************
*** 158,164 ****
        if (*fname != NUL)
            ch_log(NULL, "closing this logfile, opening %s", fname);
        else
!           ch_log(NULL, "closing logfile");
        fclose(log_fd);
      }
  
--- 159,165 ----
        if (*fname != NUL)
            ch_log(NULL, "closing this logfile, opening %s", fname);
        else
!           ch_log(NULL, "closing logfile %s", log_name);
        fclose(log_fd);
      }
  
***************
*** 170,175 ****
--- 171,178 ----
            semsg(_(e_notopen), fname);
            return;
        }
+       vim_free(log_name);
+       log_name = vim_strsave(fname);
      }
      log_fd = file;
  
*** ../vim-8.2.1544/src/os_unix.c       2020-08-23 14:28:24.107838497 +0200
--- src/os_unix.c       2020-08-29 22:48:42.500659990 +0200
***************
*** 4683,4690 ****
  
  # ifdef FEAT_JOB_CHANNEL
            if (ch_log_active())
!               // close the log file in the child
                ch_logfile((char_u *)"", (char_u *)"");
  # endif
  
            if (!show_shell_mess || (options & SHELL_EXPAND))
--- 4683,4692 ----
  
  # ifdef FEAT_JOB_CHANNEL
            if (ch_log_active())
!           {
!               ch_log(NULL, "closing channel log in the child process");
                ch_logfile((char_u *)"", (char_u *)"");
+           }
  # endif
  
            if (!show_shell_mess || (options & SHELL_EXPAND))
*** ../vim-8.2.1544/src/version.c       2020-08-30 15:49:12.158736328 +0200
--- src/version.c       2020-08-30 17:22:28.218072447 +0200
***************
*** 756,757 ****
--- 756,759 ----
  {   /* Add new patch number below this line */
+ /**/
+     1545,
  /**/

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